1) 2Cu + O₂ →t°→ 2CuO
2) CuO + 2HCl = CuCl₂ + H₂O
CuCl₂ + 2KOH = Cu(OH)₂↓ + 2KCl
3) Cu(OH)₂ →t°→ CuO + H₂O
1) 2Cu + O₂ →t°→ 2CuO
2) CuO + 2HCl = CuCl₂ + H₂O
CuCl₂ + 2KOH = Cu(OH)₂↓ + 2KCl
3) Cu(OH)₂ →t°→ CuO + H₂O